Flashlight 🔦 (keys: power->down)

When the device is locked, pressing the power button and after the valumen down cause turn on the flashlight, volume down or unlock to turn off, requires to turn off the screen to restart.- Locked screen is necessary- blocks 8, 9 and 10 allow use down volumen key normally- block 10 also force a first use of power key and is the main block of restart system (when change mode).